"Did you hear it too?" asked Catt.

"Yes!" Segna exclaimed.

Something dark and insubstantial was pressing itself against the inside of the sphere. It seemed to have big eyes. They seemed to blink. It was impossible to tell what it was. It was bigger than a person, but it did not fill the whole space inside the cage.

"What are you?" asked Catt.

The part of it that seemed like eyes became even more eye-like, focusing on her. Nothing like a mout...